hesitation on slow corners.

[Richd]

Before I start pulling things apart too hastily. A little advice.

Septembers race meeting and a track day earlier this month at Snetterton. The car ,although generally running fine 90% of the time had an annoying hesitation on the exit of Russells chicane about 1/2 to 1 second delay from pressing the throttle and the car accelerating. This was the only place it was happening on the circuit.

a couple of points which may be involved.

a) coming out in third gear as a combination of rev limiter set too low and the gearing meant that if 2nd was used I was almost instantly back into 3rd within a couple of seconds. This meant that the revs were probably at the lowest on the circuit.

b) I'm not running a turbo so no reason for any lag there

c) it tended to happen later in the races (when the cars running very warm or when the tank gets lower). However, seemed to be a problem all the time at the track day.

Where do I look first or is it the sort of thing that would be picked up on a rolling road session (planning for early next month).

Thanks in advance

Rich

[Richd]

Getting nasty hesitation on replies to this thread too

[simes43]

Sounds like a carb or fuel starvation. At a race meeting I would up the fuel pressure to eleminate "fluff"

2nd is far too low for any of Snetts corners. Perhaps you are wiping off too much speed so that 2nd can be engaged and
third is bogging.

The Omex rev limiter can play around a bit too.

[Richd]

2nd is far too low for any of Snetts corners. Perhaps you are wiping off too much speed so that 2nd can be engaged and
third is bogging.

I only looked for 2nd because of the hesitation at russells. cure the hesitation & I shouldn't need to change down.

Will get the carb checked out when I get it put on the rolling road

cheers

Rich